The densification of the urban population, with socio-spatial segregation in its various manifestations in the occupation and use of the natural space, associated with intensive exploitation of the environment and real estate speculation, determines the occupation by dwellings in inappropriate places by the less favored social strata. The municipality of Santa Maria does not escape from this conjuncture, being the Bilibiu Village a place where the conflicts between the man and the nature intensify. In this region, there are processes of soil slip and rock block bearing in the steepest areas; in the areas closest to the Vacacaí-Mirim stream, the most important event is the flood. In addition, the accumulation of lilxo in inappropriate places and the lack of pluvial and cloacal exhaustion are sources of dissemination of harmful animals and diseases.